Dickey-John gac 2100 agri User manual

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
/I
Safety Notices ..................................................................................................... 1
Disclaimer ......................................................................................................................... 1
Introduction ......................................................................................................... 3
Accessories ....................................................................................................................... 3
Features ............................................................................................................................ 4
Specifications .................................................................................................................... 4
External Communication Connections .............................................................................. 4
Printer ............................................................................................................................... 5
Unpacking the Instrument .................................................................................. 7
Disengage Shipping Brace ............................................................................................... 7
Instrument Placement ....................................................................................................... 8
Installation ......................................................................................................... 11
Connecting AC Power ..................................................................................................... 11
Navigation .......................................................................................................... 13
Display Screen ................................................................................................................ 13
Adjust Screen Contrast ................................................................................................... 13
Keyboard Layout ............................................................................................................. 13
Alarm ............................................................................................................................... 14
Key Functions ................................................................................................................. 14
Menu Screens ................................................................................................................. 15
Analyzing Grain ................................................................................................. 17
Startup Procedure ........................................................................................................... 17
Quick Start Grain Analysis .............................................................................................. 17
Prepare To Test Moisture ............................................................................................... 18
Grain Analysis (Standard Method) .................................................................................. 19
Grain Sample ID Numbers .............................................................................................. 21
Enter Numbers And Alpha Characters ............................................................................ 21
ID Options ....................................................................................................................... 22
Next Page View .............................................................................................................. 22
Grain Selection .................................................................................................. 23
Select Grain Menu .......................................................................................................... 23
Calibrate Procedures ...................................................................................................... 24
View Calibration Data (1 Key) ......................................................................................... 24
Enter/Change Calibration Values (2 Key) ....................................................................... 25
Print Calibration Grain List (3 Key) ................................................................................. 27
Obtain Basic Calibration Data (4 Key) ............................................................................ 28

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
II /
Establish Parameters ....................................................................................... 31
Clear The Cycle Counter (1 Key) ................................................................................... 31
Choose ID Options (2 Key) ............................................................................................. 32
Configure Output Options (3 Key) .................................................................................. 33
Change Access Code (4 Key) ........................................................................................ 37
Change Date, Time, And Date Format (5 Key) .............................................................. 38
Change Labels (6 Keys) ................................................................................................. 40
Set Communication Port Parameters (7 Key) ................................................................ 41
Non Active (5 Key from Communications Menu) ............................................................ 48
Using The Service Menu (8 Key) .................................................................................... 48
Test Weight Bias Adjustment ......................................................................................... 48
Test Weight Slope Adjustment ....................................................................................... 49
Moisture Bias Adjustment ............................................................................................... 51
Slope Bias Adjustment .....................................................................................................53
Testing Unit Performance ................................................................................ 55
Non Active Keys ............................................................................................................. 55
View COM1 Port (2 Key) ................................................................................................ 55
View COM2 Transmit Port (3 Key) ................................................................................. 56
View Display Characters (5 Key) .................................................................................... 57
View Diagnostic Mode (6 Key) ....................................................................................... 57
Test Network Mode (7 Key) ............................................................................................ 58
View/Print Parameters (8 Key) ....................................................................................... 61
Operator Maintenance ..................................................................................... 63
Cell Cleaning - Daily ....................................................................................................... 63
Fuse Placement .............................................................................................................. 63
Error Codes ....................................................................................................... 65
Appendix A: Communication Ports ................................................................ 67
COM1 Port Options ........................................................................................................ 67
COM1 Pin Assignment Details ....................................................................................... 67
COM2 Port Options ........................................................................................................ 68
COM2 Pin Assignment Details ....................................................................................... 69
Warranty.............................................................................................................. 71

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
1
SAFETY NOTICES
Safety notices are one of the primary ways to call attention to potential
hazards.
This Safety Alert Symbol identifies important
safety messages in this manual. When you see
this symbol, carefully read the message that
follows. Be alert to the possibility of personal
injury or death.
Use of the word WARNING indicates a potentially hazardous
situation which, if not avoided, could result in death or serious
injury.
Use of the word CAUTION with the Safety Alert Symbol indicates a
potentially hazardous situation which, if not avoided, may result in
minor or moderate injury.
Use of the word CAUTION without the safety alert symbol
indicates a potentially hazardous situation which, if not avoided,
may result in equipment damage.
DISCLAIMER
DICKEY-john reserves the right to make engineering refinements or
procedural changes that may not be reflected in this manual. Material
included in this manual is for informational purposes and is subject to
change without notice.
!

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
2 SAFETY NOTICES

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
INTRODUCTION 3
INTRODUCTION
The DICKEY-john Grain Analysis Computer GAC®2100 AGRI quickly tests
grain samples for moisture content and other profile information. The unit
loads a sample, weighs and checks temperature, runs the test, displays the
results, and unloads the sample.
Test results calculate automatically to display the moisture content. If
enabled, the temperature and approximate test weight (density) of the grain
sample will display. The product name, grain calibration date, and sample
ID numbers display for identification purposes.
An additional screen of information includes readings for conductance (D1),
capacitance (D2), weight (D3), and temperature (D4) values along with the
current date and time.
Figure 1
GAC2100 AGRI
ACCESSORIES
• Drawer p/n 464220420BS1
• Null Modem Adapter DB9 Null Modem Adapter 9 pin p/n 220490001

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
4 INTRODUCTION
FEATURES
Features of the GAC 2100 AGRI include:
• Memory for up to 8 different grain calibrations.
• Keyboard entry for updating grain calibrations as revisions become
necessary.
• Alphanumeric sample identification numbers with automatic sequential
numbering for record keeping purposes.
• Automatic ranging by switching to predetermined calibrations when
moisture is above or below normal limits.
• Two serial output ports available for printer and/or external computer.
• Self-check mode to ensure continual operation.
• Error messages for out-of-limits moisture, grain weight, or grain
temperatures.
• Help screens to assist with operators’ questions.
SPECIFICATIONS
•Supply Voltage and Frequency Limits: 85 Vac to 264 Vac 48-440 Hz
at 1 Amp Max.
•Operating Temperature Range: 5oC (41oF) to 45oC (113oF). If the
unit temperature range is exceeded, an ERROR message displays.
•Grain Temperature Range: 0oC (32oF) to 50oC (122oF). If the grain
temperature range is exceeded, an ERROR message displays.
•Unit Temperature and Grain Temperature Difference Limit: The
maximum allowable temperature differential between empty cell and
grain under test is 20oC (36oF). If exceeded, an ERROR message
displays.
•Classes/Types of Grain or Seed: Refer to the latest Calibration
Bulletin.
•Weight: 11.8 kg (26 lbs) - Shipping Weight: 15.0 kg (33 lbs)
EXTERNAL COMMUNICATION CONNECTIONS
The GAC 2100 AGRI can output to a personal computer (PC) using the
COM1 or COM2 ports. The two communication ports are located on the
rear of the unit and are identified as Printer Output Port (COM1) and
Computer Output Port (COM2). Each must be properly configured to
communicate with external devices. Port configuration is described in the
Establishing Parameters section.

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
INTRODUCTION 5
Figure 2
Communication Ports
PRINTER
An optional printer connected to the instrument can print test data results.
The printout can include:
• Facility name and address
• Current date and time
• Sample ID number
• Product name
• Grain calibration date
• Percent moisture
• Grain temperature
• Unit serial number
• D1 through D4 values
• Data can automatically print at the end of each measurement cycle or
be manually initiated by pressing the Print key.
Access
Port
COM1
Port
COM2
Port

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
6 INTRODUCTION

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
UNPACKING THE INSTRUMENT 7
UNPACKING THE INSTRUMENT
DISENGAGE SHIPPING BRACE
The shipping brace must be moved to the OPERATE position
before applying power. Since the grain test cell cycles through an
unload sequence during power up, damage may occur with the
shipping brace in the transport position.
The GAC 2100 AGRI is shipped with the grain test cell supported by an
internal shipping/transport brace. This brace is to support the test cell
whenever the unit is transported. The position of the brace is controlled by a
handle located on the rear panel behind the grain test cell. A small spool is
placed over the handle to prevent possible bumping and releasing of the
handle during shipment.
To Disengage Shipping Brace:
1. Remove spool and store with shipping materials.
2. Push the handle into unlock position and rotate counterclockwise to
the locked OPERATE position as indicated on the back panel.
– The movement of the brace is viewable through the front window of
the unit.
Figure 3
Disengaging Shipping Brace
Transport
position
Operate
position
Shipping Brace Transport Handle

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
8 UNPACKING THE INSTRUMENT
Rotate brace back into supporting position before moving or
shipping unit. If the cell is not adequately supported, operating
performance may be adversely affected due to cell bouncing.
Some effort is required to move the brace into position. It may be
helpful to reach inside the drawer front and lift up on the cell while
attempting to lock the brace into the transport position. Place
spool over handle to prevent accidental release of the shipping
brace.
INSTRUMENT PLACEMENT
Choose a clean environment for the GAC 2100 AGRI that is protected from
rapid changes in ambient temperature. Avoid a hazardous (classified)
location as defined in Article 500 of the NFPA Handbook of the National
Electrical Code.
Instrument should be placed in a dry environment/area free of
standing water or dampness to avoid electrical shock.
Figure 4
GAC 2100 Agri Dimensions
7
1
89
456
23
0
.–
7
1
89
456
23
0
.–
37.5 cm
(14.75 in.)
40.6 cm (16.00 in.) 38.7 cm (15.25 in.)
Front View
Top View
Side View
GRAIN ANALYSIS COMPUTER
GAC 2100
GAC 2100b

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
UNPACKING THE INSTRUMENT 9
To Level the Instrument:
1. Use the self-contained level on the panel top to position the GAC 2100
AGRI on a flat level or nearly level surface.
2. Adjust the four rubber foot pads to level and stabilize the unit. To adjust
the foot pad height, unlock the upper nut from the bottom panel of the
selected foot pad. Then, adjust the height as required.
– After adjustment is complete, all four leveling foot pads should be
set to the lowest level possible with one pad fully seated against the
bottom panel. This ensures minimum height above the counter top.
– When moving the unit to a different location, re-leveling can be
required.
3. After adjusting, use a Phillips screwdriver in the center of the foot pad
to hold the screw from turning and tighten the upper nut against the
bottom panel of the unit. Ensure the lower nut remains tight against the
foot pad.
Figure 5
Leveling With Rubber Foot Pads
Rubber
Foot Pads
4. After adjustment, retighten nut up against
bottom panel.
1. Use wrench to loosen the upper nut
and then adjust height.
2. Ensure bottom nut is locked down
against rubber foot pad.
3. Use a Phillips screwdriver in center
of pad to change height and to hold
the screw from turning while tightening nuts.

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
10 UNPACKING THE INSTRUMENT

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
INSTALLATION 11
INSTALLATION
Before shipping, the GAC 2100 AGRI is inspected and tested for
mechanical and electrical defects. After unpacking, visually inspect for
damage occurring during transit. Save all packing materials until the
inspection is complete. If damage is found, immediately file a claim with the
carrier and notify your DICKEY-john Sales Representative.
CONNECTING AC POWER
1. Verify that the ON/OFF (I/O) switch is in the OFF (O) position and that
the shipping brace is in the OPERATE position.
2. Plug the line cord into the connector on the rear panel next to the ON/
OFF switch.
3. Plug the male end into an appropriate 3-wire (grounded) outlet.
The grounding pin on the line cord connects directly to the
GAC2100 AGRI frame. When using an adapter with a grounding
wire, verify the grounding wire is connected properly to a good
earth ground to prevent a shock hazard.
Figure 6
Connecting Power
Verify Shipping
Brace Transport
Handle is in Operate
position
Display
Contrast
Control
Line
Cord
Connector
On/O
Switch
Fuse
Assembly

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
12 INSTALLATION
SAMPLE DRAWER BYPASS
Normal use of the sample drawer can be bypassed by removing the drawer
bottom and cutting a hole into the work counter to allow the tested grain
samples to fall through to a larger container below. The size of the hole
must be at least equal to the drawer dimension and located directly beneath
the grain sample drawer.
To Remove the Sample Drawer Bottom:
1. Remove the bottom of the grain sample drawer by carefully lifting the
two plastic tabs at the front of the drawer.
2. Use a small screwdriver to gently pry up on each tab and slide the
bottom panel out the rear of the drawer.
Use care when prying on tabs to prevent breakage.
3. When finished, slide the grain drawer back into position. This prevents
grain from spilling onto the work surface in front of the unit.
– If replacing the drawer bottom later, slide the bottom toward the
drawer front until it latches under the two plastic tabs.
Figure 7
Removing Drawer Bottom
Tab
Tab

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
NAVIGATION 13
NAVIGATION
DISPLAY SCREEN
The display screen is a graphics Liquid Crystal Display (LCD) and is backlit
for low light level viewing.
ADJUST SCREEN CONTRAST
The Display Contrast Control is on the rear panel immediately above the
COM1 and COM2 ports (Figure 6). The contrast control changes the
contrast between the displayed characters and the background. Adjust the
control as necessary for a comfortable contrast level in varying light
conditions.
KEYBOARD LAYOUT
All operator controls, except the Power ON/OFF switch and Contrast
Control, are located on the front panel. These two are on the rear panel.
The sealed membrane keyboard contains 20 pressure-sensitive keys
requiring light finger pressure to actuate each key. Valid key closures result
in short tone bursts while invalid keystrokes generate longer tone bursts.
Numbers (0 through 9), Decimal point (.) and Minus (-) Keys
All numeric keys perform dual functions of making menu selections and
entering numeric values. The four numeric keys displaying small arrows
have the additional function of screen navigation. When making a numeric
entry, a prompt on the display identifies the value entered and a cursor
shows the destination of each entry. The minus (-) sign is accepted at any
point in the entry and displays at the front of the entered string.
Figure 8
Keyboard Layout
Each entry immediately displays as the cursor moves to the right in
preparation for the next entry. Only the first entry of the decimal point is
acknowledged.
7
1
89
456
23
0
.–
NOTE: Keys 0, 1, 3 and 5
also function as arrow
keys to navigate to
certain screens.

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
14 NAVIGATION
ALARM
An audible alarm is enabled for 0.5 seconds at the end of each grain
analysis or for an error condition. A shorter beep of 0.1 seconds sounds for
each valid key stroke.
KEY FUNCTIONS
BACKSPACE KEY
Moves the cursor to the left to delete the last keystroke or to clear an entire
entry field.
NEXT PAGE KEY
Advances to the next page when the <more> prompt appears in the lower
right corner of the display. The Next Page key sequences the display
forward to additional pages of information. The total page number and page
count appear in the lower left corner of the screen (i.e., PAGE 2 OF 8).
Figure 9
Typical Screen Indicating More Pages
PREVIOUS PAGE KEY
Sequences backward through previously displayed pages. Neither the
Previous Page key or Next Page key roll-over the pages to the beginning
or end.
ENTER KEY
Accepts the character string after an entry is complete.
LOAD KEY
Initiates a grain cell loading sequence to begin a test cycle.
HELP KEY
Provides context sensitive help screens. If the <more> message appears at
the lower right of the screen, additional pages are accessible with the Next
Page key. To use the HELP INDEX when in a Help screen, select the 0 key,
followed by the desired topic. To resume normal operation, select the Help
key a second time.
SELECT GRAIN
1: CORN 5: SOYBEANS
2: CORN HI MOIST 6: FESCUE
3: WHEAT HRW 7: BARLEY
4: OATS 8: RYE
PAGE 1 OF 8 <more>
Indicates
Additional Page
Indicates Number
of Pages

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
NAVIGATION 15
PRINT KEY
Initiates a printout of current information on the screen (e.g., grain moisture
analysis, calibrations data, etc.). If the automatic printout option is selected,
the Print key initiates duplicate copies. Help information does not print.
COM SETUP options allow the Print key to transmit to either the printer port
or the communications/modem port. For example, the system can be
configured to automatically print results through the printer port while the
Print key transfers results to the computer port.
UNLOAD KEY
Dumps grain after a grain test.
LEFT/RIGHT ARROW KEYS
Moves the cursor horizontally during alpha entries and certain functions
during SETUP mode.
UP/DOWN ARROW KEYS
Moves the cursor vertically during alpha entries and certain functions during
SETUP mode.
MENU SCREENS
The Main menu displays once startup checks are successfully completed.
The Main menu is the “home” screen through which all other screens are
accessed. The Main menu displays five major selections or categories.
A number appears next to each Main menu selection. Select the desired
number to access the appropriate menu. Refer to (Figure 11) for a general
configuration of the Menu Tree layout.
Figure 10
Main Menu Selections
1
3
&
50
&
MAIN MENU
1: MEASURE MOISTURE
3: CALIBRATION MENU
2: SELECT GRAIN
4: SETUP MENU
5: TESTS MENU
SELECT ITEM NUMBER (NEXT PAGE: STATUS)
STATUS
CYCLE COUNTER: 435
THIS COUNTER INCREMENTS AFTER EACH
SAMPLE MEASUREMENT OR DATA COLLECTION
SEQUENCE IS SUCCESSFULLY COMPLETED

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
16 NAVIGATION
Figure 11
Menu Tree
SETUP MENU
MAIN MENU
1: MEASURE MOISTURE
2: SELECT GRAIN
SELECT ITEM NUMBER (NEXT PAGE: STATUS)
3: CALIBRATION MENU
4: SETUP MENU
5: TESTS MENU
FILL SAMPLE HOPPER, ENTER ID NO. THEN
SELECT GRAIN
1: CORN
2: CORN HI MOIST
3. SOYBEANS
4: SORGHUM
5: WHEAT HRW
6: WHEAT HRS
7: WHEAT SRW
8: OATS
SETUP MENU
1: CLEAR COUNTER
2: ID OPTIONS
3: OUTPUT OPTIONS
4: EDIT ACCESS CODE
SELECT ITEM NUMBER
5: DATE/TIME MENU
6: LABELS MENU
7: COM MENU
8: SERVICE MENU
TESTS MENU
1: non-active
2: COM1
3: COM2 TRANSMIT
4: non-active
SELECT ITEM NUMBER (NEXT PAGE: STATUS)
5: DISPLAY
6: DIAGNOSTIC MODE
7: TEST NETWORK MODE
8: PARAMETERS MENU
CALIBRATION MENU
1: VIEW CALIBRATION
2: ENTER/CHANGE CALIBRATION
3: PRINT CALIBRATION LIST
4: OBTAIN CALIBRATION DATA
SELECT ITEM NUMBER (NEXT PAGE: STATUS)
<MORE>
PRESS LOAD TO BEGIN
CORN 91051
ID: 2

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
ANALYZING GRAIN 17
ANALYZING GRAIN
STARTUP PROCEDURE
Each time the GAC 2100 AGRI is powered, the instrument performs a
series of self checks to determine the status of the following:
• Load/strike off mechanism
• Unload function
• Empty test cell weight
• Conductance/capacitance measurement circuitry
Self checks begin when the hopper doors open, the strike off arm swings
across the cell and back again, and the cell dumps. When the cycle ends
(about 15 seconds), the Main Menu displays.
Before starting the following procedures, verify the ON/OFF (I/O)
switch is in the OFF (O) position and that the shipping brace is in
the OPERATE position. These are both located on the rear of the
unit.
QUICK START GRAIN ANALYSIS
Performing a grain sample analysis consists of six basic steps.
1. Select a grain for testing through keyboard entries. Up to 8 grain
choices are available.
2. Pour the grain sample into the hopper (top of the unit) and enter a
sample ID number (optional).
3. Press the Load key. The sample automatically loads (drops) the grain
into the test cell. A strike-off arm will level and remove excess grain.
4. Wait briefly for the test results to process. The moisture reading and
grain temperature will display.
5. Print out a hard copy of the test results. With an optional printer
connected, the date, time, sample ID number, and all test information
can be printed. By pressing the Print key, additional copies can also
be printed.
6. Press the Unload key to empty the test cell contents. The test cell
rotates 180 degrees (inverts) to dump the grain into a sample drawer
or into a larger container below the counter top. After the cell returns to
the upright position, the unit is ready to perform another test sample.
Previous Page key

OPERATOR’S MANUAL
GAC2100 AGRI (US)
11001-1656-201505
18 ANALYZING GRAIN
PREPARE TO TEST MOISTURE
The Main Menu appears immediately after all startup checks have
successfully concluded. The Main Menu displays five major selections for
categories.
To measure moisture:
1. Choose MEASURE MOISTURE (1 Key) from the Main window to
display the Select Grain menu.
Figure 12
Moisture Testing Preparation
2. Locate the grain type for testing and select the corresponding number
to the left. After selecting a grain, the unit will cycle through self-check
tests to ensure the program memory and calibrations are valid.
Subsequent moisture measurements default to the previously selected
grain.
3. If a different grain is desired, press the Previous Page key to return to
the Main menu.
4. Select the option SELECT GRAIN (2 key) and choose a new grain
(refer to GRAIN SELECTION for additional information).
5. Enter a sample ID number. This number identifies the sample tested
on the paper printout. If the ENTER REQUIRED FOR ID is turned ON
(refer to CHOOSING ID OPTIONS in the ESTABLISHING
PARAMETERS section), the Enter Sample ID screen displays and an
ID number is required. Other ID numbering options bypass this screen.
Details on how to use ID numbers are described later in this section.
6. Use the Down Arrow key (0 key)to place the cursor next to the ID and
enter any number.
7. Press the Enter key.
MAIN MENU
1: MEASURE MOISTURE
3: CALIBRATION MENU
2: SELECT GRAIN
4: SETUP MENU
5: TESTS MENU
SELECT ITEM NUMBER (NEXT PAGE: STATUS)
SELECT GRAIN
1: CORN 5. WHEAT HRW
2: CORN HI MOIST 6: WHEAT HRS
3: SOYBEANS 7: WHEAT SRW
4: SORGHUM 8: OATS
<more>
PLEASE WAIT
PERFORMING SELF-CHECKS, ENTER ID NO. THEN
WHEAT HRW
ID: 14
960918
Sample ID Number Selected Grain Type for Testing
Calibration
Issue Date
0
Down Arrow key
Enter key
Previous Page Key